Fork oil height


11 replies to this topic
  • FinchFan194

Posted March 06, 2010 - 10:31 AM

#1

So I talked to the guys at Enzo and they suggested I take out 20cc's of oil(from 350cc's to 330cc's) out of my forks. I guess my question is how do I do this? Can I take it out of the relief at the top of the fork? Or do I need to take the cap off?

Thanks for the help in advance.

  • FinchFan194

Posted March 06, 2010 - 10:32 AM

#2

Sorry in case someone doesn't notice it in my signature its an 08.

  • crf450319

Posted March 06, 2010 - 10:11 PM

#3

Hey,

I've rebuilt my suspension (front & back) on my Honda 4 or 5 times, if I'd want to drop 20 milleliter's (same as 20CC) this is what I'd do - it shouldn't be any different on the KYB forks, in fact I'm pretty sure this method will work for you.

With the front wheel & bars off, loosen the two pinch bolts on the upper triple clamp

Then you've got to loosen the big 48mm inner cartridge from the fork leg. The cartridge is the darker brown color. See pic below, you've got to loosen the cartridge - which is what the arrow is pointing at.

Loosen the two pinch bolts on the lower triple clamp and remove the fork, being careful not to tip the fork over - you don't want to drain any fork oil just yet.

Then slide the leg (gold colored tube) down as if your suspension was compressing. You won't have to slide it down very far, 6 inches should be fine.

Then get a measuring cup and slowly tip the fork over, pour out 20 ml/cc's worth of fork oil. I've got a dedicated measuring cup for susp. service, use something like that.

Once you're done, repeat the process in reverse to tighten everything back up. What you're trying to get done really is quite easy.
Posted Image

  • FinchFan194

Posted March 06, 2010 - 10:43 PM

#4

Thanks man I got help on the Suspension forum(a great forum BTW) and was told basically the same thing. I went and bought the $50 fork cap tool and did just as you suggested. I will see how it works tomorrow.

  • FinchFan194

Posted March 06, 2010 - 10:44 PM

#5

Also the fork cap was a 49mm not a 48 as to not confuse anyone. 48mm must be for Showa??

  • crf450319

Posted March 07, 2010 - 06:31 AM

#6

Also the fork cap was a 49mm not a 48 as to not confuse anyone. 48mm must be for Showa??


That's good to know, I could get away without one on my CRF, all that I'd do is put a 19mm wrench on the head (where the comp. clicker is) and loosen the inner chamber with that. Not that it matters, but sometimes it'd want to thread itself out from the inner chamber - in that case all you'd have to do is tighten it a bit and then loosen it again. That would usually give it enough bite and would tighten itself into the cartridge, then when you'd loosen it the inner cartridge would come with it.

That won't work with the KYB forks, there's no 19mm head on the top of the fork. Looks like I'll be buying one of those wrenches too !

You won't have any problems, just take your time when you're draining the fluid. If it'd end up spilling all over the place you'd never know how much you've lost, in which case you'd have to drain the fork completely and start from scratch.

Are you riding outside already ? If you are, I'd like to know what you think of the difference in feel afterwards.

:thumbsup:

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  • Dr.Crankenstien

Posted March 07, 2010 - 07:44 AM

#7

Remove the air bleed screw tip the fork over and slowly pump out the desired amount.

  • saccityfire

Posted March 07, 2010 - 12:35 PM

#8

What was the problem leading you to call Enzo in the first place?

  • crf450319

Posted March 07, 2010 - 01:11 PM

#9

My guess would be that the front was a little too stiff for the OP.

  • FinchFan194

Posted March 07, 2010 - 08:12 PM

#10

What was the problem leading you to call Enzo in the first place?


I had an 04 that was full reworked by Enzo the suspension on the bike was amazing! It was setup for a mid pack intermediate MX rider. It worked really well for me and was well balanced. Well my motor went to the pooper so I scooped up a deal on an 08 especially after hearing all the great things about the stock suspension. Well I HATE the suspension it just blows for me. I want to send it off but have too many toys and its gonna be a hard one to get past the wife:lol: I am hoping to get it redone this winter. I called Enzo and they helped me with setup of the stock suspension because they knew I would send in the suspension to them when I am ready.

  • FinchFan194

Posted March 07, 2010 - 08:14 PM

#11

That's good to know, I could get away without one on my CRF, all that I'd do is put a 19mm wrench on the head (where the comp. clicker is) and loosen the inner chamber with that. Not that it matters, but sometimes it'd want to thread itself out from the inner chamber - in that case all you'd have to do is tighten it a bit and then loosen it again. That would usually give it enough bite and would tighten itself into the cartridge, then when you'd loosen it the inner cartridge would come with it.

That won't work with the KYB forks, there's no 19mm head on the top of the fork. Looks like I'll be buying one of those wrenches too !

You won't have any problems, just take your time when you're draining the fluid. If it'd end up spilling all over the place you'd never know how much you've lost, in which case you'd have to drain the fork completely and start from scratch.

Are you riding outside already ? If you are, I'd like to know what you think of the difference in feel afterwards.

:banana:


Yes I am riding outdoors, year round down hear in Western Washington. I took out 15cc's thinkg 10 wouldn't be enough and 20 too much. I think I hit the nail on the head as it was much better and now I am going to slowly adjust my clickers to see where I can get it now.

Thanks for all the help:ride:

  • mkporn

Posted March 08, 2010 - 07:47 AM

#12

syringe and a long piece of tubing works great.





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